AC Power Systems Handbook Third Edition by Jerry C. Whitaker.
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Chapter 1 AC Power Systems
Chapter 2 Power-Generation Systems
Chapter 3 Power Factor
Chapter 5 Capacitors
Chapter 6 Semiconductors
Chapter 7 Rectifier and Filter Circuits
Chapter 8 Power Electronics
Chapter 9 Origins of AC Line Disturbances
Chapter 10 Power Disturbance Characterization
Chapter 11 Power System Protection Methods
Chapter 12 Motor-Generator Set
Chapter 17 Circuit-Level Transient Suppression
Chapter 18 Grounding Practices
Chapter 19 Grounding Tower Elements
Chapter 20 Facility Ground-System Design
Chapter 21 Standby Power Systems
Chapter 22 Designing for Fault-Tolerance
Chapter 23 The Efficient Use of Energy
Chapter 24 Safety and Protection Systems
Chapter 25 Reference Data and Tables
Chapter 26 Units Conversion Table
Preface: Disturbances on the ac power line are what headaches are made of. Outages, surges, sags, transients: they combine to create an environment that can damage or destroy sensitive load equipment. They can take your system down and leave you with a complicated and expensive repair job.
Ensuring that the equipment at your facility receives clean ac power has always been important. But now, with computers integrated into a wide variety of electronic products, the question of ac power quality is more critical than ever. The computer-based systems prevalent today can garble or lose data because of power-supply disturbances or interruptions. And if the operational problems are not enough, there is the usually difficult task of equipment troubleshooting and repair that follows a utility system fault.
This book examines the key elements of ac power use for commercial and industrial customers. The roots of ac power-system problems are identified, and effective solutions are detailed. The book follows a logical progression from generating ac energy to the protection of life and property. General topics include:
• Power-System Operation. Every electronic installation requires a steady supply of clean power to function properly. The ac power line into a facility is, in fact, the lifeblood of any operation. It is also, however, a frequent source of equipment malfunctions and component failures. This book details the process of generating ac energy and distributing it to end-users. The causes of power-system disturbances are detailed, and the characteristics of common fault conditions are outlined.
• Protecting Equipment Loads. Power quality is a moving target. Utility companies work hard to maintain acceptable levels of performance. However, the wide variety of loads and unpredictable situations make this job difficult. Users cannot expect power suppliers to solve all their problems. Responsibility for protecting sensitive loads clearly rests with the end-user. Several chapters are devoted to this important topic. Power-system protection options are outlined, and their relative benefits discussed. Evaluating the many tradeoffs involved in protection system design requires a thorough knowledge of the operating principles.
• How Much Protection? The degree of protection afforded a facility is generally a compromise between the line abnormalities that will account for most of the expected problems and the amount of money available to spend on that protection. Each installation is unique and requires an assessment of the importance of keeping the system up and running at all times, as well as the threat of disturbances posed by the ac feed to the plant. The author firmly believes that the degree of protection provided a power-distribution system should match the threat of system failure. In this publication, all alternatives are examined with an eye toward deciding how much protection really is needed, and how much money can be justified for ac protection hardware.
• Grounding. The attention given to the design and installation of a facility ground system is a key element in the day-to-day reliability of any plant. A well-planned ground network is invisible to the engineering staff. A marginal ground system, however, will cause problems on a regular basis. Although most engineers view grounding primarily as a method to protect equipment from damage or malfunction, the most important element is operator safety. The 120 V or 208 V ac line current that powers most equipment can be dangerous — even deadly — if improperly handled. Grounding of equipment and structures provides protection against wiring errors or faults that could endanger human life. Grounding concepts and practices are examined in detail. Clear, step-by-step guidelines are given for designing and installing an effective ground system to achieve good equipment performance, and to provide for operator safety.
• Standby Power. Blackouts are, without a doubt, the most troublesome utility company problem that a facility will have to deal with. Statistics show that power failures are, generally speaking, a rare occurrence in most areas of the country. They also are usually short in duration. Typical failure rates are not normally cause for alarm to commercial users, except where computer-based operations, transportation control systems, medical facilities, and communications sites are concerned. When the continuity of operation is critical, redundancy must be carried throughout the system. All of the practical standby power systems are examined in this book. The advantages and disadvantages of each approach are given, and examples are provided of actual installations.
• Safety. Safety is critically important to engineering personnel who work around powered hardware, and who may work under time pressures. Safety is not something to be taken lightly. The voltages contained in the ac power system are high enough to kill through electrocution. The author takes safety seriously. A full chapter is devoted to the topic. Safety requires not only the right equipment, but operator training as well. Safety is, in the final analysis, a state of mind.
The utility company ac feed contains not only the 60 Hz power needed to run the facility, but also a variety of voltage disturbances, which can cause problems ranging from process control interruptions to life-threatening situations. Protection against ac line disturbances is a science that demands attention to detail. This work is not inexpensive. It is not something that can be accomplished overnight. Facilities will, however, wind up paying for protection one way or another, either before or after problems occur. Power protection is a systems problem that extends from the utility company ac input to the circuit boards in each piece of hardware. There is nothing magical about effective systems protection. Disturbances on the ac line can be suppressed if the protection method used has been designed carefully and installed properly. That is the goal of this book.
“Jerry C. Whitake”.
About the Author:
Jerry C. Whitaker is vice president of standards development at the Advanced Television Systems Committee (ATSC). Mr. Whitaker supports the work of the various ATSC technology and planning committees and assists in the development of ATSC standards, recommended practices, and related documents. ATSC is an international, nonprofit organization developing voluntary standards for digital television.
Mr. Whitaker is a fellow of the Society of Broadcast Engineers and an SBE-certified professional broadcast engineer. He is also a fellow of the Society of Motion Picture and Television Engineers, and a member of the Institute of Electrical and Electronics Engineers.
Mr. Whitaker has been involved in various aspects of the electronics industry for over 30 years. Current CRC book titles include:
• The Electronics Handbook, 2nd edition
• Electronic System Maintenance Handbook, 2nd edition
• Power Vacuum Tubes Handbook, 2nd edition
• The RF Transmission Systems Handbook
• Microelectronics, 2nd edition
Mr. Whitaker has lectured extensively on the topic of electronic systems design, installation, and maintenance. He is the former editorial director and associate publisher of Broadcast Engineering and Video Systems magazines, and a former radio station chief engineer and television news producer. Mr. Whitaker has twice received a Jesse H. Neal Award Certificate of Merit from the Association of Business Publishers for editorial excellence. He has also been recognized as educator of the year by the Society of Broadcast Engineers. Mr. Whitaker resides in Morgan Hill, California.
AC Power Systems Handbook 3rd Edition by Jerry C. Whitaker pdf.
⏩Author: Jerry C. Whitaker
⏩Publisher: CRC Press; 3 edition (September 26, 2006)
⏩Puplication Date: September 26, 2006
⏩Size: 16.6 MB
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